Home / 72,482,804.39-100,026,286.39-39,887,756.39

Finding the Fourth Proportional to 72,482,804.39, 100,026,286.39 and 39,887,756.39

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Solution

The fourth proportional to 72,482,804.39, 100,026,286.39 and 39,887,756.39 is: 55,045,112.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482,804.39 : 100,026,286.39 = 39,887,756.39 : x
  2. Step 2: Convert to fraction form
    72,482,804.39/100,026,286.39 = 39,887,756.39/x
  3. Step 3: Cross multiply
    72,482,804.39x = 100,026,286.39 × 39,887,756.39
  4. Step 4: Simplify right side
    72,482,804.39x = 3,989,824,144,120,692.50
  5. Step 5: Solve for x
    x = 3,989,824,144,120,692.50/72,482,804.39
  6. Step 6: Final answer
    x = 55,045,112.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.